Automatic stop device



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AUTOMATIC STOP DEVICE Filed July 23, 1928 5 Sheets-Sheet 1 Q i M X Q hw Q Q Q 1 Q i N Q w w 3 Q 1 kg 5 1 I m Q g I K\ (Q? Q:

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AUTOMATIC STOP DEVICE Filed July 23. 1928 3 Sheets-Sheet 2 0 6' Cad w ,M, WMVVY Dec. 3, 1929. e. w. HAMAN ET AL AUTOMATIC S TOP DEVICE Filed July 23. 1928 3 Sheets-Sheet 3 6207" e Ha 7L Or 072, G C zzZ 07,

Patented Dec. 3, 1929 t I UNITED STATES PATENT OFFI'CE GEORGE W. HAMAN AND ORTON G. CULVER, OF LA POiRTE, INDIANA AUTOMATIC STOP DEVICE Application fiIed July 23, 1928. Serial No. 294,804.

This invention relates to automatic stop 10 is provided an outlet 10. Alower gate 17 devices, and has for an object to provide a is secured to the front of the magazine and mechanism which will quickly cut oil an opis provided with the outwardly turned upper crating feeding mechanism. It is particuflange 17 An upper gate 18 is provided larly adapted for use with a high speed power with a similarly outwardly disposed flange actuated article feeding mechanism, and 18 the flanges 17 a and 18 being spaced apart more particularly adapted to such Inechasuificiently to permit the free exit of a single nisins designed for the handling of planiform card. In advance of the outlet is a pair of articles, such as cards or sheets. Another OlO- co-acting opposed feed rolls 20 and 21, beject consists of the provision of a device of tween which the cards are singly fed and by the character indicated, which is actuated which the feeding is continued. In advance by the articles themselves when any portion of the lower roll 20 is a contact roll 23 with thereof projects out of the normal path of which co acts a brush 2 L carried by the arm travel, as for example, when a card is warped 25. In advance of the contact roll 23 a throat or torn, the warped or torn portion will ac- 26 is formed by spaced strips 27 and 28, at

, 'tuate such stop device. either side of which are provided additional These and other objects will be more fully opposed feed rolls 30 and 31 which in turn set forth and described in the following receive the advancing cards singly and conspecification and shown in the accompanying tinue their travel.

2O drawings, in which A plurality of superposed switch plates 35 Fig. 1 is a vertical section through a card are provided, their forward ends 35 being arsorting machine showing our stop device atranged sequentially, as illustrated in Fig. 6

tached thereto; for example, the uppermost plate 35 having Fig. 2 is a plan view of the same; its end projecting farthest toward the front Fig. 3 is a vertical section along the line of the machine and the plates below it hav- 3-3; ing their forward ends arranged in sequence Fig. l is a perspective of the stop device as illustrated. At either side of the switch itself; plates 35 are additional feed rolls 38, 39, and

Fig. 5 is an end elevation of the stop device similar co-acting sets of rolls are provided 30 as attached to the sorting mach ne showing throughout the entire length of travel of the the same in circuit breaking position; and cards. i

Fig. 6 is a detail of the card classifying The sorting mechanism which is not our means drawn to an enlarged scale. invention, but is of well known construction As stated, our stop device is particularly and operation, includes magnets (not shown) 35 designed and adapted for attachment to a which co-act with the switch plates 35, the card sorting mechanism, although it may be contact roll 23 and the brush 24, so that aperreadily adapted for use with other machines tures or punch holes in the cards control seof a generally similar nature. lected magnets to determine which of the In the drawings 10 designates the card switch plate ends 35 will be drawn down to 40 magazine or hopper showing a plurality of encounter and switch the cards being fed 9 cards A in the lower portion thereof. These through. This operation is well known and cards rest upon a reciprocating feed block 11 needs 110 further description beyond stating having the vertically adjustable card engagthat for example, if the end S5 of uppermost ing cleat 11 arranged to pick up a single card switch plate 35 is drawn down by its mag- 45 in its reciprocation to the left, as viewed in nets, the card A next passing through will Fig. 1. .A crank 13 is illustrated as pivotally ride upon the upper switch plate and be carattached to the block 11 and reciprocated in ried through the machine by the feed rolls turn by a connecting rod 14. which is conto its deposit compartment. there a card nected to any suitable source of power as an passing through has no punch holes in align- 50 electric motor. At the front of the magazine ment with the brush 24, it wlll pass beneath '65 extends a'spring contact ing a contact which controls the main switch all of the switch plates 35 and be deposited in a separate compartment which we have indicated by numeral 40. V

A cover generally indicated by numeral 41 is hinged at 41 (see Fig. 2) at one side of the machine, and is constructed with a frontwall-or flange 41 and the glass cover plate 41 as illustrated in Fig. 1.

A block is secured by machine screws 51 or the like extended through the apertures 50 to the front wall 41' at one side of the cover, as illustrated in Figs. 1, 2 and 3 for example. This block is provided with an attachment slot 50 near one side and spaced, from the cover 41 of the machine. A hinge rod 54 is provided, having its end 54" angularly formed and threaded for projection through the slot 50 in which it is secured by the clamping nuts 55, which arrangement permits vertical adjustment of the rod 54. I

Rotatably mounted upon the rod 54 is the carrier 56 having the forwardly projecting arms 56" slotted at 56 and the rearwardl projecting lugs 56 also slotted at .56. top fingers or members 60 areadjustably secured in the slots 56 by means of clamping nuts 61 or the like, and these stop fingers are forwardly turned or bent at their lower ends as indicated by numeral 60. Generally similar stop fingers 62, provided with forwardly turned lower ends 62*, are clamped inthe slots 56 bynuts 64, as illustrated in Fig. 4. While we have shown two pairs of stop fingers, it will be apparent that this number may be varied as found desirable to meet varying conditions.

Mounted upon the angularly bent portion 54*, of hinge'rod 54 is the arm 65 of insulat ing, material which is provided with the binding post 65*. From this binding post arm 66 havoint 66 at its free end (see Figs. 1 and 2 A second contactarm 68 having the contact 68 is provided, the same being attached by its bent base portion 68 to the top of the carrier 56 (see Fig. 4).

In the form illustrated, the current wire 0 is secured to the binding post 65 and a ground wire 71 is secured to the threaded end 54* of the hinge rod 54.

These wires form part of the circuit which may either include the electric operating motor which actuates the feeding mechanism of the machine, or they may be connected to a relay of the motor. Since the motor and switch form no separate part of my invention, we have not felt it necessary to illustrate them, as the arrangement is well known to those skilled in the art. 2

With the mechanism in normal position as illustrated in Fig. 4, the contacts 68 and 66 will meet and the circuit through the switcher motor will be closed. One of the arms 60 is provided with an upwardly extending manually engageable handle 80. Should the arms 60 or 62 be struck by anything traveling through the mechanism, or the operator properly move the handle 80, the carrier 56 will be rotated to the position illustrated in Fig. 5, separating the contacts 66 and 68 and breaking the controlling circuit, which would preferably be of such a character as to require manual operation of the main switch before the machine could be restarted.

. The stop device is. preferably located with the fingers 62 at or adjacent the entrance to the throat 26 and with the lower ends 62 just above the plane or path of travel of the cards A. The fingers 60 are located at or adjacent the passage of the cards beneath or upon the switch plates 35, and we find it desirable to make the ends 60 substantially coextensive with the switching zone, which is the zone including all of the ends 35*- of the switch plates. The fingers 60 should be positioned with the ends 60 just above the normal path of any of the cards being shunted or switched by the switch plates.

A light spring 85 is provided having one portion attached to the hinge rod 54 and its free end overlying and engaging the adjacent arm 56*, this spring lightly urging the carrier 56 to contact closing position, as illustrated in Fig. 1 for example. A stop rod 81 is clamped against the fixed arm 65 and projects into the path of travel of one of the fingers 62 to limit the contact breaking movement of the carrier 56.

achines of the character illustrated feed the cards at a high rate of speed, and it occasionally happens that a card is warped or torn and fails to enter the throat 26 or jams at the switch zone, and before the machine can be shut off a large number of cards have been jammed and torn, and in many instances hours of time are required in extracting and piecing together the cards. As is well known to those skilled in the art or in the use of such machines, the destruction or loss of one card will so disturb the accounting or time recording system as to require checking of many records and a duplication of much effort. lVith our device, where a card is torn or warped so that a portion of it travels sufficiently out of its normal path of travel as to be likely to am in the machine, such portion of the card will encounter one or more of the arms 60 or 62 and immediately rock the carrier 56 to open contact position as illustrated in Fig. 5, whereupon the source of power is immediately cut off by the breaking of the electric circuit described. We have found that with a machine equipped with our stop device, not more than two cards were jammed, despite the high rate of speed and the momentum of the mechanism, as opposed to the jamming and destruction of from twenty to thirty or more cards with the manual shut-off heretofore employed.

It will be apparent that our invention is susceptible of modification, and we do not wish to be restricted to the form shown and described except as defined by the claims properly interpreted.

ll hat we claim is 1. In combination, mechanism for feeding articles in a desired path including a source of power and spaced pairs of co-acting driven opposed rollers, and stop means including a member located adjacent said path of travel between said pairs of rollers and actuatable by any of said articles having a portion projecting out of said path to discontinue the applicati on of power to said mechanism.

2. In combination, mechanism for feeding articles in a desired path including a source of power and spaced pairs of co-acting rollers actuated thereby, said mechanism having a restricted passage for said articles, and stop means located adjacent said passage between se 5 airs of rollers and adjacent the path of said articles, said means being actuatable by any of: said articles having a portion projecting out of the normal path of travel to discontinue the application of power to said mechanism.

3. In combination, mechanism for feeding articles in desired path including a source of power and spaced pairs of rollers actuated thereby, an electric circuit controlling said source of power, said circuit including a pair of contacts, and means actuatable by any of said articles having a portion projecting out of said path between said pairs of rollers to separate said contacts and thereby shutoff said source of power.

4:. In combination,

mechanism for feeding articles in a desired path including a source of power, spaced pairs of co acting rollers actuated thereby, an electric circuit controlling said source of power, said circuit including a pair of contacts, and means actuatable by any of said articles having a portion projecting out of said path to separate said contacts and thereby shut off said source of power, said last named means including a finger having a portion lying adjacent the path of travel of said articles between said pairs of rollers.

In combination, article feeding means comprising co-acting electrically actuated pairs of co-acting rolls, spaced members form ing a restricted passage for said articles, a stop device including a member lying adjacent the path of travel of said articles between said pairs of rolls and adjacent said restricted passage, an electric circuit including contacts and controlling the actuation of said feeding rolls, said stop member being actuatable by any of said articles having a portion projecting out of the normal path of travel to separate said contacts to discontinue actuation of said rolls.

6. In combination, article feeding mechanism including electrically actuated spaced pairs of co-acting rolls, means providing a throat for the passage of said articles, and means comprising a switching mechanism for classifying said articles, a stop device including a member having a portion adjacent said throat and a member having a portion adjacent said zone, said members being located between said pairs of rolls, an electric circuit for the control of said feeding mechanism and including contacts, said members being actuatable by any articles having a portion projecting out of the normal path of travel to separate said contacts to discontinue the actuation of said feeding mechanism.

7. In combination, mechanism including spaced feed rolls arranged to convey planiforin articles and actuating mechanism for said rolls,means including a stop member having an actuable portion located between the planes of said rolls to discontinue the operation of said actuating mechanism, said actuable portion being adjacent but out of the normal path of travel of said articles between said rolls whereby any of said articles having a portion between said rolls projecting out of the normal path of travel will contact said last named means.

In testimony whereof, we have signed our names to this specification.

GEORGE IV. IIAMAN. ORTON Gr. CULVER. 

